esp-idf/examples/build_system/cmake/multi_config/sdkconfig.defaults

# In this example, the default build (obtained with 'idf.py build')
# targets a hypothetical development platform.
CONFIG_EXAMPLE_PRODUCT_NAME="Blinky Development Board"

# This selects 'func_dev.c' file to be compiled and linked, see CMakeLists.txt.
CONFIG_EXAMPLE_FUNC_IMPL_DEV=y
examples: build_system: demonstrate building app with multiple configs This example shows how to use ESP-IDF build system features to build multiple configurations of an app from the same source files. Configurations are set by overriding SDKCONFIG_DEFAULTS variable when invoking idf.py. Related: https://github.com/espressif/esp-idf/issues/5658 2021-04-21 01:11:06 +02:00			`# In this example, the default build (obtained with 'idf.py build')`
			`# targets a hypothetical development platform.`
			`CONFIG_EXAMPLE_PRODUCT_NAME="Blinky Development Board"`

			`# This selects 'func_dev.c' file to be compiled and linked, see CMakeLists.txt.`
			`CONFIG_EXAMPLE_FUNC_IMPL_DEV=y`